I inherited a Workmate with all four leg springs broken. Looking to replace them I found the model by @noncorporealb_428881 which is precise in dimensions. I took it as a template to make a more printer friendly version that needs less support.
Printed in PETG, 0.4 mm nozzle, 0.25 mm layer height, 2 perimeters, 15 % gyroid infill (50 % with modifier for the not springy part), some organic support.
From the original model description:
Use a hammer to knock the pin out to remove the broken springs, then just thread the new springs on and tap the pin back in.
The author remixed this model.